46 ROYAL SOCIETY OF CANADA 
EAU 
Fig. 11.—Leucandra valida ; gastral quadriradiate spicule ; X 136. 
Fig. lla, Gastral triradiate spicule ; X 136. 
Fig. 116. Subgastral triradiate spicule ; X 136. 
Figs. 11c, 114. Dermal triradiate spicules; X 136. 
Fig. 11e. Dermal oxeote spicule; X 136. 
Fig. 12.—Leucandra Cumberlandensis (page 34). Twice the natural size. 
Fig. 12a. Part of a horizontal section ; X 60. 
Fig. 126. Gastral quadriradiate spicule ; X 136. 
Fig. 12c, Subgastral triradiate spicule ; X 136. 
Fig. 124. Triradiate spicule of the parenchyma ; 136. 
Figs. 12e, 12f. Quadriradiate spicules of the parenchyma ; X 136. 
Fig. 129. Large dermal triradiate spicule ; X 136. 
Fig. 12h. Small dermal triradiate spicule ; X 136. 
Fig. 12i. Dermal oxeote spicule ; X 136. 
Fig. 12j. Linear spicule ; X 136. 

